41  Niobium

 H                                                  He
 Li Be                               B  C  N  O  F  Ne
 Na Mg                               Al Si P  S  Cl Ar
 K  Ca Sc Ti V  Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
 Rb Sr Y  Zr[Nb]Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I  Xe
 Cs Ba La Hf Ta W  Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
 Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
                                                      
       Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu      
       Th Pa U  Np Pu Am Cm Bk Cf Es Fm Md No Lr      

+--------------------+
| 41  _   _ _        |
|    | \ | | |__     |
|    |  \| | '_ \    |
|    | |\  | |_) |   |
|    |_| \_|_.__/    |
|                    |
|       Niobium      |
|     92.90637 u     |
+--------------------+

Electron Configuration: [Kr]5s1 4d4
Electronegativity:      1.6
Atomic Radius:          207 pm
Ionization Energy:      6.759 eV
Electron Affinity:      0.893 eV
Oxidation States:       +5, +3
Standard State:         Solid
Melting Point:          2750 K
Boiling Point:          5017 K
Density:                8.57 g/cm3
Family:                 Transition metal
Year Discovered:        1801
Number of Neutrons:     52
Number of Protons:      41
Number of Electrons:    41
Number of Valence:      
Valency:                
Group:                  5
Period:                 5
Shell:                  d-shell
Specific Heat:          0.265 J/g K
Radioactive:            0
Occurrence:             Natural
Source:                 Dying low-mass stars